Our Mini Energy Gems are perfect little reminders to attract & manifest a colorful spectrum of positive energy to make your world a brighter place to thrive. Need to bring a little joy into your world? Let our fire opal gems serve as a reminder to focus on the things that make your heart beam. Tarnish Free - Long lasting protective coating safeguarding your jewelry from sweat, water, and more. Sterling Silver – 18K gold plating over silver Hypoallergenic – Lead Free Lab Grown White Opal Stone Height 5mm Description provided about crystals is for information purposes only and not intended to diagnose, treat, cure, or prevent any diseases.